51111050050 has 48 divisors (see below), whose sum is σ = 100221299712. Its totient is φ = 19363939200.

The previous prime is 51111050033. The next prime is 51111050077. The reversal of 51111050050 is 5005011115.

It is a happy number.

It is a super-2 number, since 2×51111050050² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277947 + ... + 423646.

It is an arithmetic number, because the mean of its divisors is an integer number (2087943744).

Almost surely, 2^51111050050 is an apocalyptic number.

51111050050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51111050050 is a deficient number, since it is larger than the sum of its proper divisors (49110249662).

51111050050 is a wasteful number, since it uses less digits than its factorization.

51111050050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701683 (or 701678 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 51111050050 its reverse (5005011115), we get a palindrome (56116061165).

The spelling of 51111050050 in words is "fifty-one billion, one hundred eleven million, fifty thousand, fifty".